Scaptognathus bassianus Abé & Green, 1994

Abé, Hiroshi, 2021, Taxonomic review of the subfamily Lohmannellinae (Acari: Trombidiformes Halacaridae) with morphological comparisons among genera, Zootaxa 4980 (2), pp. 201-255 : 228

Scaptognathus bassianus Abé & Green, 1994

Diagnosis. Glp-1 posterior to Ds-1. Ds-2 on membranous cuticle. PE with 1 dorsal seta. GA bipartite in female. Female with 6 Pgs and 4 Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 1-1-1-1 setae; Tf I–IV with 6-5-3-2 setae, 3- 1-0-0 Bp setae; Gn I–IV with (4,5)-(4,5)-3-3 setae, 2-1-0-0 Bp setae; Tb I–IV with (8–10)-7-7-7 setae, (4–6)-4-4-4 Bp setae; Ta I–IV with 3-3-3-3 dorsal setae, 1-1-0-0 Bp setae. Lc I with minute accessory process. Idiosoma length 264 in female. Idiosoma width 200 in female. Gnathosoma length 246 in female. Gnathosoma width 128 in female. Ratio of gnathosoma to idiosoma 0.93 in female.

Remarks. This species resembles S. ornatus , however, differs from the latter in the number of Bp setae, namely Tb I–IV with 2-1-0-0 and Tf I–IV with 3-1-0-0 Bp setae. Female is known.

Habitat. Sublittoral zone: Medium to coarse sandy sediment at 15 m depth.

Distribution. Indian Ocean: Burnie (Tasmania) [ Australia].

Reference. Abé & Green (1994).

Depository. BMNHL.